Engineering High-Purity Fused Quartz Solutions Since 2019
Donghai County Nivra Quartz Products Co., Ltd. is a dedicated manufacturer and exporter located in Donghai County, Lianyungang, Jiangsu — China’s renowned epicenter for quartz and crystal resources. Established in February 2019, our company combines geographical raw material superiority with modern cold machining, optical grinding, fire-working, and strict metrology inspection.
We supply precision fused quartz tubes, plates, crucibles, wafer boats, flanges, and customized laboratory glassware to global high-tech clients across the semiconductor, photovoltaic, optical laser, and analytical instrument sectors. Adhering to the principle of "Quality First, Reputation Foremost", every production run is audited for geometric accuracy, thermal stability, and optical clarity.
Basic Enterprise & Operational Profile
Essential corporate verification details for overseas procurement compliance, import qualification, and factory audits.
Enterprise Record & Registration Parameters
| Registered Company Name | Donghai County Nivra Quartz Products Co., Ltd. |
|---|---|
| Business Structure | Manufacturer, Custom Fabricator & Trading Company |
| Year of Incorporation | February 2019 (Verified On-Site) |
| Operational Address | 285 Heping East Road, Donghai County, Lianyungang, Jiangsu Province, China |
| Official Contact Email | [email protected] |
| Total Employee Capacity | 101 – 200 Personnel (Engineering, Production, Inspection, Logistics) |
| Core Product Range | Fused Quartz Glass Tubes, Optical Quartz Plates/Discs, High-Temperature Crucibles, Semiconductor Quartz Boats, Flanges, Cuvettes, Custom Labware |
| Customer Support Response Time | ≤ 5 Hours (Measured In-Depth Inquiry Response: 88.89%) |
| OEM / ODM Custom Capability | Available against 2D/3D Drawings (PDF, DWG, DXF, STEP, IGES) |
Verified Factory & R&D Capabilities
End-to-end quartz manufacturing designed to satisfy rigorous dimensional tolerances, thermal thresholds, and optical standards.
Precision Cold Machining
Our workshop houses CNC slicing, high-accuracy coring, grinding, and CNC profile milling equipment capable of achieving micrometric accuracy on complex quartz parts.
- Dimensional tolerances down to ±0.05 mm
- CNC slotted semiconductor quartz boats
- Precision optical disc edgework and beveling
Hot Working & Annealing
Master glassblowers perform high-temperature oxyhydrogen flame shaping, lathe welding, tube sealing, and stress-relief thermal annealing furnaces.
- Uniform wall thickness distribution
- High-temperature stress relief annealing
- Custom spiral tubes, bell jars, and manifold bodies
Optical Polishing & Inspection
Dedicated inspection stations verify surface roughness, bubble classes, inclusion ratings, and spectral transmittance across ultraviolet, visible, and infrared spectra.
- Double-sided optical polishing (Ra ≤ 0.5 nm)
- JGS1 / JGS2 / JGS3 optical grade assurance
- Spectrophotometer and CMM dimensional checking
International Trade Capacity & Core Markets
Donghai County Nivra Quartz Products Co., Ltd. serves industrial buyers, laboratories, and OEM distributors in over 30 countries.
Export Logistics & Packing Safeguards
Shockproof Crating: Because quartz glass requires supreme care during air and ocean transit, every component is individual-wrapped with polyethylene foam, bubble film, and secured inside heavy-duty cartons or ISPM 15 heat-treated plywood crates.
Flexible Commercial Terms: We support EXW, FOB, CFR, CIF, and DDP shipments via reputable express couriers (DHL/FedEx/UPS), air cargo, and ocean freight lines.
Production Facility & Quality Inspection
A transparent look at our specialized quartz processing operations at 285 Heping East Road, Lianyungang, Jiangsu.
Need Custom Quartz Parts or Engineering Quotes?
Send your drawings or technical requirements to [email protected]. Our engineering and international trade team will evaluate manufacturability and provide an official quotation within 5 hours.